nav {
  width: 100%;
  height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: #fff;
}

nav .center {
  display: flex;
  justify-content: space-between;
}

nav .center > div {
  display: flex;
  align-items: center;
}

nav .center .certificate {
  font-size: 20px;
  padding: 15px 20px;
  border-radius: 10px;
  background-color: #f3f3f3;
  color: #888;
  margin: 0 20px;
  cursor: pointer;
}

nav .center .certificate:hover {
  background-color: var(--mainColor);
  color: #fff;
}

.navbar {
  display: flex;
  justify-content: space-between;
  position: sticky;
  top: 0;
  align-items: center;
  left: 0;
  width: 100%;
  transition: all 0.5s;
  z-index: 99;
  padding: 0 20px;
  box-sizing: border-box;
  box-shadow: 0px 0px 5px 3px rgba(0, 0, 0, 0.1);
  background-color: #fff;
}

.navbar .right {
  display: flex;
}

.navbar .right > div a {
  cursor: pointer;
  color: #030303;
  display: block;
  padding: 25px 28px;
  transition: all 0.5s;
}

.navbar .right > div a:hover, .navbar .right > div a.active {
  color: var(--navbarColor);
}
